Cheap 40 m high-gain aerial...the half-square

If you can't see the video, please insert this title URL into your browser search box:

https://www.youtube.com/watch?v=a0i0EazI3O0&ab_channel=DXCommander

This is post 2358 in a continuing series of simple ham radio antennas.

If you want a simple, inexpensive 40 meter antenna with some gain (about 3 dBi), please try the "classic half-square antenna."

In this video, Callum (M0MCX) discusses the theory and construction practices of this antenna.

I've built several of these half-square "aerials" for both 20 and 40 meters, and they work very well broadside to the vertical array.

Callum does an excellent job of outlining the pros and cons of this easily-made antenna.  Here are few of his remarks:

I have not built a half-square yet - but this looks a cracking little antenna, particularly if you might have appropriately spaced trees in your back yard? 50 Ohms means no complex tuning, just coax to your antenna. Here's the Verticals I discussed: https://youtu.be/QfmdCAtNDU8 Background: My name is Callum, callsign M0MCX. The whole DX Commander brand was a bit of an "accident" since I already have 2 day-jobs (I own a couple of tech companies). Everything I make, I use myself. My products are the answer to *my* problems so I made stuff that worked for me. I don't make gear that doesn't work and although I'm considered not short of a few dollars, I love the idea of making things economical, easy to build and as efficient as you can achieve on a tight budget (hey, I hate wasting money!). My store is here: https://www.m0mcx.co.uk/store/products/ and I ship (almost) worldwide. Russia seems to be too expensive however EU, USA, Canada and VK land still make my products economical when you include shipping. Hey. Did you know that you can help the others here by contributing your time to closed caption subtitles here: https://www.youtube.com/timedtext_cs_... Enjoy your radio folks. Good luck. Callum. M0MCX. DX Commander Founder.
-----
Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).
 

Comments

Post a Comment

Thank you for visiting my Amateur Radio Blog. I value your comments and suggestions. For Amateur Radio Antenna Topics and Discussions, stay here. For Amateur Radio News and Trends, please visit my news site at https://bigislandarrlnews.com.
Aloha es 73 de Russ (KH6JRM).

Popular posts from this blog

Antenna for Condo Backyard-Stealth. Post #1542.

Image
If you can't see the video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=MXTYTytR56A. Don't let deed-restricted properties (HOA/CC&R) stop you from enjoying Amateur Radio.  In this video from AC2RJ, we see how some well-placed trees, a camera tripod, a telescoping fiberglass mast, and a "V" antenna can get you on the air without a lot of effort.  Add an antenna "tuner", a sturdy rig, such as the Yaesu FT-817, a microphone/cw key, and a simple grounding system, and you have a fully functional, nearly invisible ham station in your backyard. For the latest Amateur/Ham Radio news and information, please visit these web sites: http://www.HawaiiARRL.info. http://www.arrl.org. http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday afternoon). https://hamradiohawaii.wordpress.com. https://bigislandarrlnews.com. https://amateurradionewsinformation.com (Amateur Radio News &
Read more

G5RV Multi Band HF Dipole Antenna. Post #1555.

Image
If you can't see the video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=aeNHIQ_j4Dk This well-produced and richly illustrated tutorial on the classic G5RV HF Dipole Antenna was presented to the Brandon Amateur Radio Society in Brandon, Florida in 2017 by Bernie Huth (W4BGH).  Bernie does an excellent job of  explaining the pros and cons of this popular HF antenna from the late Louis Varney (G5RV).  Although Varney envisioned his design primarily as a 3/2 wavelength antenna for the 20 meter Amateur Radio band, radio amateurs have used the antenna for multiband use.  The G5RV is an excellent choice for the 20 meter band.  Performance on other HF Amateur Radio bands is good enough to qualify as stand alone HF antenna if you can only erect one HF antenna. For the latest Amateur/Ham Radio news and information, please visit these websites: http://www.HawaiiARRL.info. http://www.arrl.org. http://www.arrl.org/arrl-audio-news (a wee
Read more

Amateur Radio Bicycle Mobile Setup. Post #1554.

Image
If you can't see the video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=2zWb-KnkGdY. Here's a way to use Amatuer/Ham Radio while you work on shedding a few pounds in useful exercise.  Why not equip your bicycle for 2 meter/70 cm mobile operation? In this short, well-made video, "taverned" shows us how he used a mag mount antenna, a simple C clamp, and a basic ground system to convert his mountain bike into a mobile station.  The project is straight forward, simple, and gives you emergency communications while you peddle down the road. For the latest Amateur/Ham Radio news and information, please visit these websites: http://www.HawaiiARRL.info. http://www.arrl.org. http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday afternoon). https://hamradiohawaii.wordpress.com. https://bigislandarrlnews.com. https://amateurradionewsinformation.com (Amateur Radio News & Information).
Read more